Tension structure and drum motor

A tension structure for connecting a drive part with a rotating part, the tension structure being configured to drive the rotating part to rotate about a rotation axis under a driving of the drive part, and the tension structure comprising:

• a first connection part, in transmission connection with the drive part;
• a limit part, comprising a bottom wall and a side wall arranged at a periphery of the bottom wall, wherein the side wall defines therein installation slots;
• and the bottom wall is detachably connected to the first connection part to enable the side wall to sleeve outside the first connection part;
• tension parts, engaged with the installation slots, respectively, wherein a side of each of the tension parts facing away from the first connection part protrudes from a corresponding installation slot and presses against the rotating part;
• the side wall comprises a plurality of convex columns which are spaced apart from adjacent ones, sides of each of the plurality of convex columns facing toward adjacent convex columns are provided with grooves, respectively, and each of the grooves and an opposite groove form an installation slot having an installation port;
• and
• each of the tension parts comprises limit bosses spacedly arranged at two sides thereof;
• and the limit bosses are engaged with corresponding grooves, and the tension parts are inserted into the installation slots through the installation ports, respectively.